package com.zml.twelfth.example.observable;

/**
 * @author <a href="mailto:zhaominglin@wxchina.com">minglin.Zhao</a>
 * @Description 观察者
 * @Date 2017/11/10
 * @Version 1.0.0
 */
public interface Quackservable {
    public void registerObserver(Observer observer);
    public void notifyObservers();
}
